Fuel cell and cell fastening pins

Inactive Publication Date: 2006-05-25
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0037] Accordingly, after the unit cell is fastened, each gate portion can be easily b

Problems solved by technology

Therefore, this process is inconvenient and requires an additional cost, thereby increasing the manufacturing cost.
In addition, weight saving of elastic metal clips has a limit.
In partic

Method used

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  • Fuel cell and cell fastening pins
  • Fuel cell and cell fastening pins
  • Fuel cell and cell fastening pins

Examples

Experimental program
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Example

[0048] Hereinafter, embodiments of a fuel cell and a cell fastening pin according to the present invention will be described with reference to the appended figures (i.e., FIGS. 1 to 10).

[0049]FIG. 1 is an exploded perspective view showing a unit cell of the fuel cell as an embodiment of the present invention. The fuel cell in the present embodiment is a solid polymer electrolyte membrane type. As shown in FIG. 1, an anode 52 (i.e., an electrode) and a cathode 53 (i.e., another electrode) are provided on either side of a solid polymer electrolyte membrane 51 (made of a fluorine electrolyte material or the like) so as to form a membrane electrode assembly 54. The membrane electrode assembly 54 is closely placed between an anode separator 55 (corresponding to a second separator in the present invention) and a cathode separator 56 (corresponding to a first separator in the present invention) so as to form a unit cell 50 (i.e., a unit fuel cell). A plurality of the unit cells 50 are sta...

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PUM

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Abstract

A fuel cell has a unit cell in which a membrane electrode assembly, in which a pair of electrodes are provided on either side of an electrolyte membrane, is provided between a first separator and a second separator. Pin insertion holes are respectively provided in a plurality of portions in an outer periphery of each of the first and the second separators, and the pin insertion holes of the first separators are respectively coaxial with those of the second separator. A leg portion of a cell fastening pin made of resin is inserted through each pair of the coaxial pin insertion holes of the first and the second separators. The unit cell is fastened by fitting a flange portion formed at an end of the leg portion to the first separator, and fitting a hook portion formed at the other end of the leg portion to the second separator.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a fuel cell and cell fastening pins for fastening elements of a unit cell which is a constituent of the fuel cell. [0003] Priority is claimed on Japanese Patent Application No. 2004-338974, filed Nov. 24, 2004, the content of which is incorporated herein by reference. [0004] 2. Description of the Related Art [0005] In a known fuel cell, an anode and a cathode are provided on either side of a solid polymer electrolyte membrane so as to form a membrane electrode assembly. The membrane electrode assembly is placed between separators which are provided so as to form a unit cell. Generally, a specific number of unit cells are stacked to form a fuel cell stack. [0006] In consideration of easy handling, working convenience, productivity, or the like for the above kind of fuel cell, in each unit cell, the membrane electrode assembly and the separators on either side thereof may be fastened t...

Claims

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Application Information

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IPC IPC(8): H01M8/10H01M8/24A44B17/00A44B9/00
CPCF16B5/0642H01M8/0247H01M8/247Y10T24/3467H01M2008/1095Y02E60/50Y10T24/46H01M8/248
Inventor SAKANO, MASAAKISUGITA, NARUTOSHISUZUKI, RYUGO
Owner HONDA MOTOR CO LTD
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